过去分词变化规则.ppt

动词变形,现在分词,过去分词的用法,表示动作的完成或者被动,过去分词的不规则变化,一.AAA型（动词原形、过去式、过去分词同形）,cost（花费）cost-costcut（割）-cut-cuthit（打）-hit-hithurt伤害）-hurt-hurtlet（让）-let-letput（放）-put-putread（读）-read-read,二.AAB型（动词原形与过去式同形）,beat（跳动）-beat-beaten,三.ABA型（动词原形与过去分词同形）,become（变成）-becamebecomecome（来）-came-comerun（跑）-ran-run,1.过去式和过去分词都含有-ought。bringbroughtbroughtbuyboughtboughtthinkthoughtthought,四.ABB型（过去式与过去分词同形）,2.词尾有-ild，-end时，只需把d变为t。buildbuiltbuiltlendlentlentsendsentsentspendspentspent3过去式、过去分词都含有-aught。catchcaughtcaughtteachtaughttaught,4把-eep变为-ept。keepkeptkeptsleepsleptsleptsweepsweptswept5.把-ell变为-old。telltoldtoldsellsoldsold,6过去式、过去分词都含有-elt或-ilt。smellsmeltsmeltspellspeltspeltfeelfeltfeltspillspiltspilt7过去式、过去分词都在原形词尾加t。learnlearntlearntmeanmeantmeantspoilspoiltspoilt,8过去式、过去分词词尾去y变-idsaysaidsaidpaypaidpaidlaylaidlaidhearheardheard9改变辅音字母。makemademade,10改变元音字母。meetmetmetgetgotgotsitsatsatfindfoundfoundholdheldheldspitspatspatshineshoneshonewinwonwonhanghunghungdigdugdugloselostlost,11.改变元、辅音字母。leaveleftleftstandstoodstoodhave（has）hadhadunderstandunderstoodunderstood,五.ABC型（动词原形、过去式与过去分词三者不同形）,1.iau变化。beginbeganbegundrinkdrankdrunksingsangsungringrangrungswimswamswumsinksanksunk,2.词尾为-ow，-aw时，过去式将其变为-ew，过去分词在其原形后加n。blowblewblowndrawdrewdrawngrowgrewgrownknowknewknownthrowthrewthrown（show除外）,3.词尾为“i辅（1个）e”，过去式将i变为o，过去分词多在原形后加n，若那个辅音字母为d或t，须双写d或t后加n。（give，hide除外）drivedrovedrivenwritewrotewrittenrideroderiddenriseroserisen,4.过去分词在过去式后加（e）n。breakbrokebrokenchoosechosechosenfreezefrozefrozenspeakspokespokenwakewokewoken,5.过去分词由过去式加-ten构成。forgetforgotforgotten6.过去分词由原形加（e）n构成。bewas（were）beeneatateeatenfallfellfallengivegavegivenseesawseenhidehidhidden（hid）,7.词尾为-ake时，过去式将其变为-ook，过去分词在原形词后加-n。taketooktakenmistakemistookmista